EP0959651B1 - Elektronische Anordnung - Google Patents

Elektronische Anordnung Download PDF

Info

Publication number
EP0959651B1
EP0959651B1 EP99303605A EP99303605A EP0959651B1 EP 0959651 B1 EP0959651 B1 EP 0959651B1 EP 99303605 A EP99303605 A EP 99303605A EP 99303605 A EP99303605 A EP 99303605A EP 0959651 B1 EP0959651 B1 EP 0959651B1
Authority
EP
European Patent Office
Prior art keywords
assembly
housing
motherboard
lightning strike
strike protection
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP99303605A
Other languages
English (en)
French (fr)
Other versions
EP0959651A3 (de
EP0959651A2 (de
Inventor
Brian Frederick Farman
Steven John Webster
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Goodrich Control Systems Ltd
Original Assignee
Goodrich Control Systems Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Goodrich Control Systems Ltd filed Critical Goodrich Control Systems Ltd
Publication of EP0959651A2 publication Critical patent/EP0959651A2/de
Priority to US09/504,623 priority Critical patent/US6833980B1/en
Publication of EP0959651A3 publication Critical patent/EP0959651A3/de
Application granted granted Critical
Publication of EP0959651B1 publication Critical patent/EP0959651B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K9/00—Screening of apparatus or components against electric or magnetic fields
    • H05K9/0067—Devices for protecting against damage from electrostatic discharge
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/70—Coupling devices
    • H01R12/77—Coupling devices for flexible printed circuits, flat or ribbon cables or like structures
    • H01R12/79—Coupling devices for flexible printed circuits, flat or ribbon cables or like structures connecting to rigid printed circuits or like structures

Definitions

  • This invention relates to an assembly intended for use in aerospace applications and intended to house electrical/electronic circuits forming part of the control system for the aircraft.
  • testing of the lightning strike protection circuits of the type described hereinbefore requires removal of the circuit boards or cards carrying the circuits from the motherboard, and this may require disassembly of a substantial portion of the assembly, thus testing is a relatively complex and time consuming operation.
  • an electronic assembly comprising a housing receiving a motherboard arranged, in use, to carry control circuit components, and a circuit board carrying a lightning strike protection circuit, said circuit board including a first electrical connector, and the assembly further including a flexible cable electrically connected to the motherboard, the cable including a second electrical connector arranged to cooperate with said first electrical connector to electrically connect the lightning strike protection circuit to the motherboard, said first and second connectors being accessible from outside of the housing.
  • Such an arrangement is advantageous in that testing of the lightning strike protection circuit can be achieved by disconnecting the first and second connectors from one another and making alternative connections between the lightning strike protection circuit and appropriate test equipment without removing the circuit board carrying the lightning strike protection circuit from the housing.
  • the assembly further comprises a removable cover which can be mounted over the first and second connectors, in use, in order to restrict unauthorized access thereto.
  • the electronic assembly illustrated in the accompanying drawings comprises a housing 10 which includes internal walls 10 a which divide the interior of the housing into a first compartment within which a motherboard is located, the motherboard being arranged to cooperate, in use, with circuit boards or cards bearing electrical or electronic circuits intended for use in controlling the operation of an aircraft.
  • the housing 10 further defines a second compartment 12 within which circuit boards or cards 14 bearing lightning strike protection circuits are mounted.
  • the housing 10 may be of multipart construction, and the part of the housing defining the second compartment 12 may take the form of a module which is removable from the remainder of the housing 10.
  • each card 14 in the orientation illustrated in Figure 1 carries a socket 16 forming a first connector, the socket 16 including a plurality of electrical connector pins which are electrically connected to tracks defining part of the lightning strike protection circuit carried by the card 14.
  • One convenient manner for securing the cards 14 in position is to rigidly mount the cards 14 to part of the wall of the housing 10 using appropriate bolts.
  • Plugs 18 forming second electrical connectors are arranged to cooperate with the sockets 16, the plugs 18 being electrically connected to the ends of respective cables 20, the other ends of the conductors of the cables 20 being electrically connected to circuits carried by the motherboard, for example using appropriate electrical connectors, or by soldering the conductors of the cables to appropriate conductive tracks carried by the motherboard.
  • the plugs 18 and sockets 16 are of the type in which, when a plug 18 and socket 16 are connected to one another, a locking mechanism can be used to avoid accidental release of the plug 18 from the socket 16.
  • the locking mechanism may take the form of one or more bolts 26, each of which is arranged to extend through an opening formed in the plug 18 and to cooperate with a screw threaded opening provided in the socket 16.
  • the part of the housing 10 adjacent the sockets 16 of the cards 14 defines an opening through which the sockets 16 can be accessed.
  • a cover plate 22 is conveniently securable to the housing 10 to close the opening, thus restricting access to the sockets 16 and plugs 18, in use.
  • the cover plate 22 is secured to the housing 10 by means of screw-threaded bolts 24.
  • the plugs 18 are secured to the sockets 16, thus electrically connecting the lightning strike protection circuits carried by the cards 14 to the remainder of the electrical or electronic circuits located within the housing 10 of the electronic assembly.
  • the electrical connections between the circuits of the electronic assembly and the remaining control circuits of the aircraft are conveniently achieved through a series of sockets or other connectors mounted in the wall of the housing 10 so as to be accessible from the exterior of the housing.
  • the lightning strike protection circuits When the lightning strike protection circuits are to be tested, the external electrical connections to the housing 10 are removed and the electronic assembly is removed from the aircraft.
  • the cover plate 22 is removed from the housing 10, and the plugs 18 are removed from the sockets 16 after releasing the locking mechanism.
  • the lightning strike protection circuits carried by the cards 14 can then be electrically connected to an appropriate test apparatus using the sockets 16 to permit testing of the circuits.
  • the plugs 18 are reintroduced into the sockets 16, the cover plate 22 is secured in position to prevent access to the sockets 16 and plugs 18, and the electronic assembly is repositioned in the aircraft and connected once again to the remainder of the control circuits of the aircraft. Should a fault be detected, then the card 14 carrying the faulty circuit is replaced.
  • the electronic assembly of the present invention is advantageous in that testing of the lightning strike protection circuit can be achieved without removing the cards 14 carrying the lightning strike protection circuits from the housing 10.
  • the test operation is therefore relatively simple to perform and can be performed relatively quickly.
  • the testing may take place without having to remove the electronic assembly for the aircraft. It will be appreciated that in these circumstances, prior to the commencement of testing, the circuits carried by the cards 14 are electrically isolated from the remainder of the electronic system of the aircraft, for example by removing external electrical connections from the assembly to the electronic system of the aircraft.

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Mounting Of Printed Circuit Boards And The Like (AREA)

Claims (4)

  1. Elektronische Anordnung, die aufweist: ein Gehäuse (10), das eine Mutterleiterplatte aufnimmt, die so angeordnet ist, daß sie bei Benutzung Steuerschaltkreisbauteile trägt; und eine Leiterplatte (14), die einen Blitzeinschlagschutzschaltkreis trägt, wobei die Leiterplatte (14) einen ersten elektrischen Verbinder (16) umfaßt, und wobei die Anordnung außerdem ein elastisches Kabel (20) umfaßt, das elektrisch mit der Mutterleiterplatte verbunden ist, wobei das Kabel (20) einen zweiten elektrischen Verbinder (18) umfaßt, der so angeordnet ist, daß er mit dem ersten elektrischen Verbinder (16) zusammenwirkt, um den Blitzeinschlagschutzschaltkreis elektrisch mit der Mutterleiterplatte zu verbinden, wobei der erste und der zweite Verbinder (16, 18) von außerhalb des Gehäuses (10) zugänglich sind.
  2. Anordnung nach Anspruch 1, bei der der erste Verbinder (16) eine Buchse und der zweite Verbinder ein Stecker (18) ist.
  3. Anordnung nach Anspruch 1 oder 2, bei der eine Sperreinrichtung (26) vorhanden ist, die so ausgeführt ist, daß der erste und zweite Verbinder (16, 18) zusammen im verbundenen Zustand gesperrt werden, um eine zufällige Trennung zu vermeiden.
  4. Anordnung nach einem der vorhergehenden Ansprüche, die außerdem eine abnehmbare Abdeckkappe (22) aufweist, die über dem ersten und zweiten Verbinder (16, 18) bei Benutzung montiert werden kann, um einen unbefugten Zugang dazu einzuschränken.
EP99303605A 1998-05-23 1999-05-10 Elektronische Anordnung Expired - Lifetime EP0959651B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US09/504,623 US6833980B1 (en) 1999-05-10 2000-02-15 Magnetoelectric device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9811062.0A GB9811062D0 (en) 1998-05-23 1998-05-23 Electronic assembly
GB9811062 1998-05-23

Publications (3)

Publication Number Publication Date
EP0959651A2 EP0959651A2 (de) 1999-11-24
EP0959651A3 EP0959651A3 (de) 2000-08-16
EP0959651B1 true EP0959651B1 (de) 2003-07-23

Family

ID=10832557

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99303605A Expired - Lifetime EP0959651B1 (de) 1998-05-23 1999-05-10 Elektronische Anordnung

Country Status (4)

Country Link
US (1) US6243249B1 (de)
EP (1) EP0959651B1 (de)
DE (1) DE69909677T2 (de)
GB (1) GB9811062D0 (de)

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4272141A (en) * 1979-06-11 1981-06-09 Frederick Electronics Electronic card cage interfacing assembly
US4503484A (en) * 1983-10-28 1985-03-05 Stypher Corporation Chassis for electronic circuitry
US4701696A (en) * 1985-11-25 1987-10-20 Tektronix, Inc. Retargetable buffer probe
US4758924A (en) * 1986-05-29 1988-07-19 Honeywell Bull Inc. Electronic equipment housing
US5388995A (en) * 1993-06-11 1995-02-14 The Whitaker Corporation EMI/RFI protective cable interface for high density junction box
US5364287A (en) * 1993-07-07 1994-11-15 Alcatel Network Systems, Inc. Connector restraining apparatus
US5539801A (en) * 1994-11-25 1996-07-23 Racal-Datacom, Inc. Removable telephone line protection module for an electronic device
DE19543016C2 (de) * 1995-11-18 2000-11-02 Daimler Chrysler Aerospace Schutzschlauchanordnung
US5712754A (en) * 1996-04-15 1998-01-27 Compaq Computer Corporation Hot plug protection system
US6061806A (en) * 1997-05-12 2000-05-09 Lsi Logic Corporation Method and apparatus for maintaining automatic termination of a bus in the event of a host failure

Also Published As

Publication number Publication date
EP0959651A3 (de) 2000-08-16
EP0959651A2 (de) 1999-11-24
DE69909677D1 (de) 2003-08-28
US6243249B1 (en) 2001-06-05
GB9811062D0 (en) 1998-07-22
DE69909677T2 (de) 2004-06-17

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